-/**
- * busdb_record - bus and id are keys to look up name of device
- */
-struct busdb_record {
- char name[NAME_SIZE];
-};
-
-/**
- * classdb_record - class name and class device name used as keys to find
- * device name.
- */
-struct classdb_record {
- char name[NAME_SIZE];
-};
-
-struct sysfsdb_record {
- char name[PATH_SIZE];
-};
-
-/**
- * namedb_record - device name is key, remaining udevice info stored here.
- */
-struct namedb_record {
- char sysfs_dev_path[PATH_SIZE];
- char class_dev_name[NAME_SIZE];
- char class_name[NAME_SIZE];
- char bus[BUS_SIZE];
- char id[ID_SIZE];
- char driver[NAME_SIZE];
- char type;
- int major;
- int minor;
- mode_t mode;
-};
-
-/**
- * udevdb_close: close udev database
- */
-static void udevdb_close(void)
-{
- if (udevdb != NULL) {
- tdb_close(udevdb);
- udevdb = NULL;
- }
-}
-
-/**
- * udevdb_open: opens udev's database
- * @method: database can either be in memory - UDEVDB_INTERNAL - or
- * written to a file with UDEVDB_DEFAULT.
- */
-static int udevdb_open(int method)
-{
- udevdb = tdb_open(UDEV_CONFIG_DIR UDEV_DB, 0, method, O_RDWR | O_CREAT, 0644);
- if (udevdb == NULL) {
- if (method == UDEVDB_INTERNAL)
- dbg("Unable to initialize in-memory database");
- else
- dbg("Unable to initialize database at %s", UDEV_CONFIG_DIR UDEV_DB);
- return -EINVAL;
- }
- return 0;
-}
-
-/**
- * busdb_fetch
- */
-static struct busdb_record *busdb_fetch(const char *bus, const char *id)
-{
- TDB_DATA key, data;
- char keystr[BUS_SIZE+ID_SIZE+2];
- struct busdb_record *rec = NULL;
-
- if (bus == NULL || id == NULL)
- return NULL;
- if (strlen(bus) >= BUS_SIZE || strlen(id) >= ID_SIZE)
- return NULL;
-
- memset(keystr, 0, (BUS_SIZE+ID_SIZE+2));
- strcpy(keystr, bus);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, id);
-
- key.dptr = (void *)keystr;
- key.dsize = strlen(keystr) + 1;
-
- data = tdb_fetch(udevdb, key);
- if (data.dptr == NULL || data.dsize == 0)
- return NULL;
-
- rec = (struct busdb_record *)malloc(sizeof(struct busdb_record));
- if (rec == NULL) {
- free(data.dptr);
- return NULL;
- }
-
- memcpy(rec, data.dptr, sizeof(struct busdb_record));
- free(data.dptr);
-
- return rec;
-}
-
-/**
- * classdb_fetch
- */
-static struct classdb_record *classdb_fetch(const char *cls,
- const char *cls_dev)
-{
- TDB_DATA key, data;
- char keystr[NAME_SIZE+NAME_SIZE+2];
- struct classdb_record *rec = NULL;
-
- if (cls == NULL || cls_dev == NULL)
- return NULL;
- if (strlen(cls) >= NAME_SIZE || strlen(cls_dev) >= NAME_SIZE)
- return NULL;
-
- memset(keystr, 0, (NAME_SIZE+NAME_SIZE+2));
- strcpy(keystr, cls);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, cls_dev);
-
- key.dptr = (void *)keystr;
- key.dsize = strlen(keystr) + 1;
-
- data = tdb_fetch(udevdb, key);
- if (data.dptr == NULL || data.dsize == 0)
- return NULL;
-
- rec = (struct classdb_record *)malloc(sizeof(struct classdb_record));
- if (rec == NULL) {
- free(data.dptr);
- return NULL;
- }
-
- memcpy(rec, data.dptr, sizeof(struct classdb_record));
- free(data.dptr);
-
- return rec;
-}